Hot-water heater.



, Patented nec. 4. 1900.

s. STRONG. HOT WATER HEATER.'

(Application mea Jan. s, V1900.)

(Ho Modeh) @I n d 0 o .M @E E Y .www Ag QQ, MMU,

` NITED STATES PATENT OEEICE.`

GEORGE STRONG, OF DETROIT MICHIGAN.

HOT-WATER H EATER.

SPECIFICATION forming part of Letters Patent No. 663,244, dated December4, 1900.

Application led January 22,1900. Serial No. 2,860. (No model.l

To a/ZZ whom t may concern:

Be it known that I, GEORGE STRONG, a citizen of the United States,residing at Detroit, in the county of Wayne and State of Michigan, haveinvented certain new and useful Improvements in Hot-WaterHeaters,ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

My invention heaters, and has for its object the obtaining of aconstruction in which the various constituent tubes are effectivelydisposed, and one in which the parts may be easily assembled.

The invention consists in the peculiar construction, arrangement, andcombination of parts, as hereinafter described and claimed.

In the drawings, Figure 1 is a vertical and cross section through myheater. Fig. 2 is a perspective view of the two sections comprising myheater, showing the manner of assembling the same. Fig. 3 is ahorizontal section illustrating the manner of connecting the risers tothe headers. Fig. 4 is a horizontal section on line Fig. l.

My heater comprises two sections similar in construction and adapted tobeindependently assembled, each section being provided with a series ofvertical risers having laterally-extending loops or return-bends. Theloops of the two sections are so arranged as to interinesh with eachother and together form the top of the fuel-chamber, the sides of whichare formed by the vertical portions of the tube.

In detail the construction is as follows: A A' and B B are respectivelytop and bottorn headers extending longitudinally of the heater andparallel with each other. Each pair of headers is connected by a seriesof risers O and C, which are of the following construction: a. is avertical tube connected to the lower header. and extending upward tosubstantially lthe top of the fuel-chamber; b, a series oflaterally-extending loops, the lower one being preferably connected byan elbow cto the tube a, and the others being connected in series byelbows or return-bends d. The highest loop b is connected with avertical tube e, which extends upward and into the header A. The tubeso. are arranged as close as possible to each other, so as to form, in

relates to tubular hot-water effect, the wall of the combustion-chamberadapted to retain the fuel therein. In order to thus closely space saidtubes, I preferably alternately connect them into the top and side ofthe header B, as shown in Fig. 2. Thus the rst pipe a may be connecteddirectly into the top ofthe header, and the -second pipe a is connectedby an elbow f with a short lat-eral pipe or nipple g, which in turn isconnected by the elbow 7L into the vertical pipe t, the latter beingconnected by the elbow j to the side of the header. Thelaterally-extending pipe or nipple g is preferably formed with right andleft threads at its opposite ends, so that the pipe a may be readilyconnected in or removed from the structure without disturbing theadjacent pipes. The connection of the vertical pipes e with the upperheader is similar to that between pipes a and the lower header, the onlydifference being that the pipe e, corresponding with the pipe a, isconnected into the side of the upper header, while the pipe e',corresponding to the pipe a', is connected into the bottom of theheader.

From the above description it willbe seen that the sections forming theopposite sides of the heater are entirely independent of each other inconstruction. When arranged in proper relation to each other, however,the loops b of one section intermesh with the loops b of the oppositesection, as shown in Figs. l and 2. To provide for this arrangement,each loop b is separated a sufficient dist-ance from the adjacent loopto permit of a loop from the opposite section extending therebetween.When the two sections are placed together, as shown in Fig. 1, thelateral loops b are so closely arranged in relation to each other as toleave only sufficient space for the flame from the lire to passtherebetween. The vertical tubes d a' are also so near to each otherthat the elbows and other fittings of the adj acent pipes are preferablytough. To connect the two sections to each other and with the outlet andinlet pipes, I provide at each end of the heater the arched pipe D,comprising the vertical pipesp and horizontal pipes q, said archbeingconnected atits lowerends with the ends of the headers B and B' andcentrally of the arch with the vertical pipe E. The two vertical pipes Eare connected at the top by a longitudinal pipe F and near the centerIOO thereof with a vertical pipe G, forming the return connection to theheater. The upper headers A and A' are connected with the longitudinalpipes H, preferably arranged thereover and entering the opposite ends ofthe headers, said longitudinal pipes Vbeing: cross-connected by a pipeI, which is centrally connected With-a vertical pipe J, forming theoutlet connection from the heater. Thus the two sections of the heaterare firmly connected with each other and at the same time may be readilydisconnected whenever necessary. 1

The general proportions of my heater when completed are such as to makethe length and height relatively great in proportion to the width, asshown in Figs. 2 and 4. This has the effect of reducing the necessarygrate-sur-v face `and also influences the working of the heater, as willbe hereinafter described.

The sections are arranged in any suitable casing, such as K, with thelower headers B and B resting upon ledges or supports.

M is the grate, which I have shown as of a rotary form, havinglaterally-projecting finside of the wall of pipes a a and into which theflame and products of combustion may pass through the narrow slitsbetween the pipes. In order to clear these chambers O from anyaccumulation of ashes or soot, I

preferably providedoors P on either the front combustion will passbetween the tubes above and vto the side and will finally make their wayto the smoke-stack S. I have found in practice that a furnace of theporportions described requires but very little attention and willdevelop a uniform heat for a much greater length of time than if theWidth of the fuelchamber were greater in proportion to its length andheight and to the amount of gratesurface. Moreover, as the side pipes a,as Well as the headers B and B, come in direct lcontact with the fuelthe Water will be thoroughly heated, even with a slow fire. Thus myheater is especially useful for use in heating private houses where onlya comparatively small amount of heat is needed and where it isdesirableto have a uniform heating action with only occasionalattention. At the same time the heater is equally adapted for u-se inheating larger buildings and may be easily regulated to give any desiredtemperature.

What I claim as my invention is- 1. A water-heater comprisingtwoseparatelyassembled oppositely-arranged sections, each consisting of topand bottom headers, and a series of connecting-risers the upper portionsof each riser having a series of laterally-extending loops orreturn-bends adapted to intermes'h with the loops of the correspondingriser in the opposite section, and formingan arch over the fuel-chamber,and connections between said top and'bottom headers respectively forminga common outlet and common inlet connection with both sections.

2. A water-heater comprising top and Ybottom headers and a series ofconnecting-risers, said risers being alternately connected to the top ofsaid bottom header and side of said top header, and side of said bottomheader and or rear Wall of the casing, through which a suitable cleaningimplement may be introduced and the dirt removed. For feeding the fuelinto the heater I arrange a door Q in the front wall of the casing, andthis is preferably placed just below the lowest loop b. I alsopreferably arrange a series of laterally-extending loops R in the frontand rear risers which extend in proximity to the rear and front Walls ofthe casing and form a tubular lining to the fire-pot.

The construction of the furnace being as described, in operation thefuel is fed in through the door Q and may,if desired, completely fillthe chamber bounded on the sides by the tubes d a and on the top by thetubes b. In burning, the flame and products of IOO

